diff --git a/trino-csharp/Trino.Client/ClientSelectedRole.cs b/trino-csharp/Trino.Client/ClientSelectedRole.cs
index 1756bb8..f36c4bc 100644
--- a/trino-csharp/Trino.Client/ClientSelectedRole.cs
+++ b/trino-csharp/Trino.Client/ClientSelectedRole.cs
@@ -47,5 +47,10 @@ public ClientSelectedRole Clone()
         {
             return new ClientSelectedRole(this.RoleType, this.Role);
         }
+
+        public override string ToString()
+        {
+            return RoleType.ToString()+"{"+Role+"}";
+        }
     }
 }
diff --git a/trino-csharp/TrinoDriver.sln b/trino-csharp/TrinoDriver.sln
index abdc8c8..b3b930b 100644
--- a/trino-csharp/TrinoDriver.sln
+++ b/trino-csharp/TrinoDriver.sln
@@ -1,54 +1,98 @@
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